Reactive triazine containing diazo dyestuffs

ABSTRACT

Dyestuffs of the formula: IN WHICH D1 and D2 are azo, anthraquinone or nitro dye radicals, R1-R6 are H or lower alkyl groups, A1 and A2 are radicals of the benzene or naphthalene series and T1 is a chloro-s-triazine radical, are reactive dyestuffs for cellulose having good fastness to light and washing. They are especially notable for the high proportion which reacts with the fiber when applied from saline dyebaths.

United States Patent Andrew et al. 51 May 23, 1972 REACTIVE TRIAZINE CONTAINING References Cited DIAZO DYESTUFFS UNITED STATES PATENTS [72] Inventors: Herbert Francis Andrew; Neville Jackson, 3,349,074 10/1967 Andrew ..260/146 both of Manchester, England Primary Examiner.loseph Rebold [73] Assigneez Imperial Chemical Industries Limited, Asst-8mm Examiner Donald Papuga London England Attorney-Cushman, Darby & Cushman F] d: Dec. 22, 1969 [22] 57 ABSTRACT 87 329 [2]] Appl No 8 Dyestufi's of the formula:

[30] Foreign Application Priority Data f f I T I Dec. 31, 1968 Great Britain ..6l,961/68 R! in which D, and D are azo, anthraquinone 0r nitro dye [52] US. Cl. ..260/146 T, 260/146 D, 260/147, radicals, R,R are H or lower alkyl groups, A, and A 260/148, 260/150, 260/151, 260/153, 260/154, are radicals of the benzene or napihalene series and T, is 260/158, 260/162, 260/ 163, 260/ 194, 260/ 195, a chloro-s-triazine radical, are reactive dyestuffs for cellu- 260/196, 260/198, 260/199,260/205, 260/206, lose having good fastness to light and washing. They are 260/249,260/249.5,260/249.8 especially notable for the high proportion which reacts [51 Int. Cl. ..C09b 62/08 with the fibre when applied from saline dyebaths. [58] Field oiSearch ..260/153,146

6 Claims, No Drawings REACTIVE TRIAZINE CONTAINING DIAZO DYESTUFFS This invention relates to new reactive dyestuffs of the triazine or pyrimidine series, useful for the coloration of cellulose textile materials.

The new dyestuffs are represented by the general formula:

R1 2 R3 R4 R5 Ru (1) wherein each N has the usual meaning of a nitrogen atom,

R R R R R and R may be the same or different and each represents a hydrogen atom or an alkyl group having up to 4 carbon atoms,

A and A represent divalent radicals of the benzene or naphthalene series, more particularly phenylene or naphthylene radicals in which the benzene or naphthalene nuclei contain at least one sulphonic acid group and may otherwise be substituted, e.g. by Cl, CH or COOH.

IIIH-aXi-ITIH R2 R3 (2) b. three moles of cyanuric chloride, and

c. two moles of a water-soluble colored compound or one mole of each of two different colored compounds of the formula:

As examples of compounds of formula D,NHR, there may be mentioned:

i. Anthraquinone compounds of the formula:

NHz ll l SO H wherein the anthraduinone nucleus may contain an additional sulphonic acid group in the 6-, 7- or 8-position and V represents a bridging group which is preferably a divalent radical of the benzene series, for example phenylene, diphenylene or 4,4-divalent stilbene or azobenezene radicals. It is preferred that V should contain one sulphonic acid group for each benzene ring present. R has the meaning stated above.

ii. Monoazo compounds of the formula:

wherein D represents a monoor dicyclic aryl radical which is free from azo groups and NHR groups, the -NHR, group is preferably attached to the 6-, 7- or 8-position of the naphthalene nucleus, and which may contain a sulphonic acid group in the 5- or 6-position of the naphthalene nucleus.

D may represent a radical of the napthalene or benzene series which is free from azo substituents, for example a stilbene, diphenyl, benzthiazolylphenyl or diphenylamine radical. Also in this class are to be considered the related dyestuffs in which the NHR, group, instead of being attached to the naphthalene nucleus, is attached to a benzoylamino or anilino group which is attached to the 6-, 7- or 8-position of the naphthalene nucleus.

Particularly valuable dyestuffs are obtained from those wherein D represents a sulphonated phenyl or naphthyl radical, especially those which contain a --SO H group in ortho position to the azo link; the phenyl radical may be further substituted for example, by halogen atoms such as chlorine, alkyl radicals such as methyl, acylamino groups such as acetylamino and alkoxy radicals such as methoxy.

iii. Disazo compounds of formula (4), wherein D stands for a radical of the azobenzene, azonaphthalene or phenyl-azonaphthalene series and the naphthalene nucleus is substituted by the Nl-IR group, and optionally by sulphonic acid as in class (ii).

iv. Monoazo compounds of the formula:

wherein D stands for a mono or dicyclic aryl radical as described for class (ii) and is preferably a disulphonaphthyl or a stilbene radical; the benzene nucleus may contain further substituents such as halogen atoms, or alkyl, alkoxy, carboxylic acid and acylamino groups.

v. Monoor dis-azo compounds of the formula:

wherein D represents an arylene radical such as a radical of the azobenzene, azonaphthalene or phenylazonaphthalene series, or, preferably, an at most dicyclic arylene radical of the benzene or naphthalene series, and K represents the radical of a naphthol sulphonic acid or the radical of an enolised or enolisable ketomethylene compound (such as an aceto-acetarylide or a 5-pyrazolone) having the OH group 0- to the azo group. D. preferably represents a radical of the benzene series containing a sulphonic acid group.

vi. Monoor dis-azo compounds of the formula:

D N=NK --NHR (7) wherein D represents a radical of the types defined for D in classes (ii) and (iii) above and K represents the radical of an enolisable ketomethylene compound (such as an acetoacetarylide or a S-pyrazolone) having the OH group in a-position to the azo group.

vii. The metal complex, e.g. the copper, chromium and cobalt complex, compounds of those dyes of formulas 4, 6 and 7 (wherein D D,,, K and K have all the respective meanings stated) which contain a metallisable (for example, a hydroxyl, lower alkoxy or carboxylic acid) group orthoto the azo group in D or D viii. Nitro dyestuffs of the formula:

B Nl-l---B NHR (8) wherein R and R represent monocyclic aryl nuclei, the nitro group in B being ortho to the NH group.

As examples of compounds of classes (i) to (viii) there may be mentioned:

In Class (i) l-amino-4-(4-aminoanilino)anthraquinone-2,3'- disulphonic acid.

l-amino-4-(4'-methylaminoanilino )anthraquinone-2:3 disulphonic acid.

l amino-4-( 3 "amino2 :4 6-trimethylanilino) anthraquinone-2,5 -disulphonic acid.

The 1:2-chromium complex of 8-amino-l-hydroxy-2-(2- kinds of diamines of formula (2) and condensing these two hydroxy-3-nitro-5-sulphophenylazo)naphthalene-3z6- compounds with cyanuric chloride in stepwise manner. As disulphonic aci mentioned above, this stepwise reaction can be generally con- The 1:2-cobalt complex of 8-amino-l-hydroxy-2-(2- trolled by use of temperature. Thus reaction of the first hydroxy-3-nitro-5'-sulphophenylazo)naphthalene-3i6- 5 chlorine atom in cyanuric chloride with a primary aromatic disulphonic acid. amine can be effected at from 0 to 35C. and the second at In Class (viii) from 45 to 80C.

4-amino-2'-nitro-diphenylamino-3:4-disulphonic acid. The above process is illustrated but not limited by the fol- As examples of diamines of formula (2) there may be menlowing Examples in which parts and percentages are by tioned: weight:

1 :4-phenylenediamine-Z-sulphonic acid, 1:3-phenylenediamine-4-sulphonic acid, 2-methyl-lz4-phen- EXAMPLE 1 ylenediamine-o-sulphonic acid, 2-methyll :S-phenylenediamine-4-sulphonic acid, 2:6-diaminotoluene-4- sulphonic acid, 2-methyl-l:5-phenylenediamine-3-sulphonic acid, 4:4'-diamino stilbene-2:2'-disulphonic acid, 4,4- diaminodiphenyl-3-sulphonic acid, 2:6-diaminonaphthalene- 4:8-disulphonic acid and l:4-diaminonaphthalene-Z-sulphonic acid.

Condensation of the various intermediate compounds depicted under (a), (b), and (c) may be effected in a number of ways utilizing the known general reaction that the halogen atoms of cyanuric chloride can be replaced stepwise by condensation with amines at different temperatures in aqueous medium utilizing an acid-binding agent to neutralize the Solution ofsodium carbonam liberated hydrogen halide 45 Parts of sodium chloride are added and the precipitate is For dyestuffs which are symmetrical, the following filtered m 13.3 pans f the Sodium salt f the Procedure can be effected: monochlorotriazinyl compound so obtained are dissolved in step Ha) 300 parts of water and the solution is added to a stirred XTX+2HNR -A -NHR T1==NR3A|NHR2)2 suspension of 1.32 parts of cyanuric chloride in 20 parts of Step Kb) acetone, 20 parts of water and parts of ice. The mixture is i 1 Di-NRi-Trx stirred a 5l0C. for 1 hour then neutralized to pH 7 with four parts of a l0 percent aqueous solution of sodium car- (9) 2 moles OHIO) dyestuff 5 bonate. The solution is heated to -50C. for 3 hours, the Alternatively, after p 1(3); pH being maintained at 7 by further addition of a 10 percent Step 2(a) aqueous sodium carbonate solution, 40 parts of sodium 2 m0lcS 0f l X 1( 3 1 2 l )2 Q l) chloride and 40 parts of potassium chloride are added and the To a stirred suspension of 3.7 parts of cyanuric chloride in 40 parts of acetone and 40 parts of crushed ice there is added a neutral solution of 12.2 parts of the trisodium salt of 2-(2'- ureido-4'-aminophenylazo)naphthalene-3:628-trisulphonic acid in 200 parts of water and the mixture is stirred for 1 hour 0 at 05C. then neutralized to pH 7 with 10 parts of a 10 percent aqueous solution of sodium carbonate. A neutral solution of 4.2 parts of the sodium salt of 1:4-diaminobenzene-2- sulphonic acid in 100 parts of water is added to the above mixture and the latter is heated at 45-50C. for 3 hours, the pH 2 5 being maintained at 7 by the addition of a 10 percent aqueous Step 2 followed y: solution is diluted with ethanol. The precipitate is filtered off P 3 40 and is then dried.

2 moles of 1 l dyestuff The dyestuff composition so obtained contains 1.47 atoms Yet a different rocedure starts with step 1(b) above and conf hydrolysable chlorine f each azo group present w tinues: plied to cellulose textile materials in conjunction with a treat- P ment with an acid-binding agent, the dyestufi yields reddishz i a i i i -2 1 45 yellow shades with good fastness to washing and to light.

a 12) The following table illustrates further Examples obtained in p similar manner to Example 1 by condensing cyanuric chloride moles) i dyestuff with one mole of the amino compound of column 2 and with Unsymmetrical dyestuffs are preferably obtained by a modifione mole of the diamine of column 3 and condensing 2 moles cation of this last procedure wherein two different species of of the resulting product with one mole of cyanuric chloride. compound (12) are manufactured by using different kinds of The shade of material colored with the resulting dyestuff is dyestuff compounds of formula D NHR, and/or different tat d in colu n 4.

Example Amino compound Diamine Shade .i Z-N-mcthylamino-5-hydr0xy-lz5z7-trisulpho-2:G-azonaphthalcnc 1:4-dianlinobcnzcne-2-sulphonic cid Reddish orange. 3 Q-N-lilcthylamin0-5-hydr0Xy-6-(2-sulD M-meth0Xyph0nylaZ0) 1:S-diaminobcnzcnct-sulpllonic acid Scarlet.

naphthalenc-7-sulphorlic acid. 4 l-(-l-sulphophenyl)-3-carb0Xy4-(3-amm06"-Sl11Dh0Dll0I1ylflZ0)-5 1:4-diamil1obcnzel1e-2-su1phonic acid Grcenisll pyrazolone. yellow. 5 2-N-msthylaminod hydroxy-l:5fl-tnsulphofl:ti-azonaphthalcnc 1:3-dialninobenzellei-sulphonic acid Rdddish orange. 6 2-(4-amino-2-ureidophenylazo)-naphthalenc-3:6:8-trisulphonic acid do Rcddish yellow. 1-amino-8-hydroxy-2':7-azonaphthalcnc-1z3cfi-tl'isulphonic acid 1:4-diarninobenZenc-2-sulpllonic acid Bluigh re Copper complex of 2-amino-5-hydroxy-6-(2-llydroxy-5-sulphophenylazo) do RublIlO,

naphthalene-1:T-disulphonic acid. 2-(4-aminc 2-ureidophcnylazo)-naphthalcnc-3:6:8-trisulphonic acid i 1-amlglo4-N-mcthylaminobcnzcnc-3-sulphonic Reddisll aci yellow 1-amin0-8-11ydroxy-7-(2'sulpllophenylazo)naplltllalcnc-3:6disull honic acid 1:4-diaminobonzcnc-2-sulpllonic acid Red. Copper complex of 1-amino-S-hydroxy-7-(2'-l1ydr0xy-5'-anlillo-3- l:4-diaminobcnzclle-2-sulphonic acid Blue.

sulpllophcnylazo)naphthalene-2:4-disulphonic acid. (,oppcr complex of 2-amino-5-llydroxy-ti (2-hydroxy-B:5-disulph0pllellyllo Rubinc.

:lzo) llaphtllalcnc-7-sulphonic acid. l3 7, 1-(4-sulphopllonyl)-3-carboxy-l-(3nmil1o43"-sl1lpll0phenylaz0)5- 4:4-diamil1odiphenyl-3sulphonic acid Grecnish pyl-llzolollc. yellow l-l... l-mnino-li-hydroxy-B-7-nzonllpllthnlcllc-3z4:G:8-tctrasulpllonic 1Cld 1:4-diaminobcnzenc-2-sulpllonic acid. Bluiish rc l6". l-nmillo-fi-llydroxy-zz;7-:lzollaplltllalcllc-l:3z5:Gtctrasulpllollic acid do Do. Ilia. :(Mmnillo-2-llrcidoplll llylnzo)naphthalene-3:6zti-tl-isulphonic acid l:3-diaminobcnzeneA-sulphonic acid Rcdillisll ye ow l7 .I-(4 -lllllll(l-2'N-:l(!0|.ylilll1lllOIllllllyltlZO)llilIJlllllillcnej628-1.!l5u1p1l0nl0 1:4-diaminobcllzcnc-z-sulpllonic acid D0.

llcit 1s n -(-l -nlllillo-2-N-:lcctylalnillopllollylnzo)-llaplltllalcnc-4:G:B-trisulphonic 1Z3-dl311ilIIODGHZGIIG-i-SlllDllOIlic acid Do.

Example Amino compound Diamine shade Copper complex of 2-amin0-5-hydr0xy-6-(2' hydroxy-3':5-disulph0phenyl- 1:4-diaminobenzene-2-sulphonic acid Rubirm azonaphthalene-T-sulphonic acid. Copper complex 01' 2-amino-5-hydroxy-6-(2-hydroxy3:5'-disulph0phenyl- 1:4-tliamin0benzene-2-sulphonic acid Do.

azo naphthalene-7-sulphonic acid. Copper complex oi1-amino-2':8-dihydroxy-2zT-azonaphthalene-B:4':6:8z do Reddish tefirasulphonic acid. d blue.

o. l-(4-sulphophenyl)-3-carboxy-4-(3"-amino-6"-sulph0phenylazo)-5- l:3-diaminobenzene-t-sulphonic acid Greenish pyrazolone. yellow. 1-(3-amipophenyn-l'carboxy-t-(l:5"-disulphonaphth-2-ylazo)-5- l:4-diaminobenzene-2-sulphonic acid D pyrazo one. Copper complex oirl-amino-lz8-dihydroxy-2':T-azonaphthalene-EIA:(izG: ,do 4 Reddish 8-pentasulphonic acid. blue. 2 2-(4-amino-2-ureidophenylazo)naphthalene-3:6z8-tnsu1phonic acidm." 2:5-(liaminobenloic acid Reddjsh ellow 27 2-(-i-amin0-2-methylpl1eny12120)naphthalene disulphonic acid 1:4-diaminobenzene-Z-sulphonic acid A 1 50, 23 1-gmjn0 8-hydroxy-lzT-phenylazmtaphthalene-ii.fi-diSlllXlhDIiiC aci d Re Copper complex of l-aminoS-hydroxyfl (2-hydroxy-3-chloro-5-sulpho- .do ,Q violet phenylazo)naphthalene-3:6-disulphonic acid. 0 1-amino4(2:4:61trlmethyl-3-aminophenylamin0)anthraquinone-Z:5- do Blue disulphonic acid. 3 1;1-mixture of1amino-4(4-amino-3-sulphophenylanuno)anthraqumoneido Do.

(and 8-) sulphonic acids. 32 4-nitro4-aminostilbene-2:2-di5ulph0n1c acid do Greefinsh ye ow. 33 41i r aminodiphenylamine-2-su1phonic acid 1:3 diamin0benzene+sulphonic acid Rcddish yellow. 3 4-nmino-T-nitro-diphenylamine-B:4 diSulphDn i0 acid l:s-dlaminobenzenc-2-sulphonic acid Do.

EXAMPLE 35 The copper complex of 2-amino-5-hydroxy-6-( 2'-hydroxy-5 -sulphophenylazo)naphthalene-l:7'disulphonic acid is condensed successively with one mol. of cyanuric chloride and 1 mol. of 1:4-diarninobenzene-Z-sulphonic acid. 7.9 parts of the tetrasodium salt of the monochlorotriazinyl compound so obtained are dissolved in 200 parts of water and the solution is added to a stirred suspension of 1.5 parts of cyanuric chloride in parts of acetone, 20 parts of crushed ice and 20 parts of water. The mixture is stirred at 5-l0C. for 1 hour, then neutralized to H 7.0 with 6 parts of a 10 percent aqueous solution of sodium carbonate. A solution of 7.55 parts of the tetrasodium salt of the secondary condensation product of cyanuric chloride with 1 mole of 2-(2'-ureido-4'-aminophenylazo)naphthalene-3:6:8-trisulphonic acid and 1 mole of 1,4- diaminobenzene-Z-sulphonic acid in 200 parts of water is added to the above mixture and the latter is heated at 55-6O C. for 7 hours the pH being maintained at 7.0 by the: addition oi'ZTlO percent aqueous solution of sodium carbonate. Fifty parts of sodium chloride and 50 parts of potassium chloride are added and the precipitate is filtered off and is then dried.

The dyestufi composition so obtained contains 155 atoms of hydrolysable chlorine for each azo group present. When applied to cellulose in conjunction with a treatment with an acidbinding agent the dyestuff yields reddish-brown shades with good fastness to washing and to light.

The following table gives the shades of further dyestuffs which are obtained in similar manner to Example 35 Le. by forming the secondary condensation product of cyanuric chloride with the amino compound A of column 2 and the diamine A of column 3, and the secondary condensation product of cyanuric chloride with the amino compound B of column 2 and the diamine B of column 3 and reacting where P is the radical of a diazo component and Q is the radical of a coupling component so that final formation of the dyestuff can take place by coupling a diazotised aromatic amine with an intermediate compound represented by the general formula:

it. a, In R. R5 Rt (14) wherein the symbols R,R A A and T have the meanings stated above and at least one of Q and Q, represents an aromatic radical capable of coupling with an aromatic diazonium compound, and the other either represents such an aromatic radical or represents a radical as defined by D in connection with formula l The intermediate compounds of formula (14) can be obtained by condensing together two moles of a diamine, or one mole of each of two different diamines of formula 2, three moles of cyanuric chloride and either two moles of a coupling component of formula Q NHR, or one mole of each of two tnitroaminostilbene-z2-disulphonic acid (B) Example Amino compound Diamine Shade E-(Q-amiHo-E ureidBEfiEniiliblifabTithalenB:6:B trisulplwnic a'cid (Aim 1:4-diaminobenzene-2-sulphonic acid (A) Do.

1 :t disuminobenzene-asulphonlc acid (B).

37 zapfliin ptv-liydrgxy -g-(2-sulph0-4-meth0xyphenylazo)naphtha1ene-7- lzIHfiaminobenZene-G-sulphonic acid (A) s arl t,

s p omc aci Q-N-methylamino-5-hytlr0xy-6-(2-sulpho-4-methoxyphenylazo)naphthal:4-diaminobenzene-2-sulphonic acid (B) lene-i sulphonic acid (B). 33 1:2-c0pper complex of 2-amin0- -hydr0xy-6(2'-carb0xyphenylazo) 1:4-diaminobenzcne-2'sulphonic acid (2 mols) Brown,

naphthalene-7-snlphonic acid (A). A +nitro-4-aminostil ene-2:2- isulph nic acid (E) lz t-diaminob nz n qm h m acid (2 mols) B). 39 Copper complex of l-amino-l':8-dihydroxy 2:7-azonaphthalene-3:4':6:8- 1:3-diaminobenzene6-sulphonic acid (A) oliv tetrasulphonic acid (A). green 2-(4-amjno-2-ureidophenylazomaphthalene-li:fiz8-trisulphonic acid (BL-.. 1:4-diaminobenzene-2-sulphonic acid (B) 40 Copper complex of 2-ammo- -hy roxy- (2-hy r0xy-3amino-5'-sulphol:4-diaminobenzene-2-sulphonic acid (2 mols) Reddjsh phenylazo) naphthalene-lfl-disulphonic acid (A). brown.

(A). 4-nitro-4'-aminostilbene-2:2'-disulph0nic acid (A) 1:4-dlamin0benzene-24ulphonic acid (2 mols) different coupling components of formula Q,NHR or one mole of a coupling component of formula Q NHR and one mole of a water-soluble colored compound of formula D, NHR,.

As examples of diamines of formula (2) there may be mentioned:

1:4-phenylenediamine-2-sulphonic acid, 1:3-phenylenediamine-4-sulphonic acid, 2-methyll :4-phenylenediamine-6-sulphonic acid, 2-methyl-1:5-phenylenediamine-4-sulphonic acid, 2:6-diaminotoluene-4- disulphonic acids, 2-amino-5-naphthol-7-sulphonic acid, 2-

amino-S-naphthol-l ,7-disulphonic acid, 2-amino-8-naphthol- 6sulphonic acid, 2-amino-8-naphthol-3,G-disulphonic acid, 2- (4-amino anilino)-8-naphthol-3,6-disulphonic acid and the N-methyl derivatives of these, l-(3-aminophenyl)-3-methyl and 3-carb0xy-5-pyrazolones, 1-(4-aminophenyl)-3-methyland 3-carboxy-5-pyrazolones, 1-(3-amino-4'-sulphophenyl)- 3-methyland 3-carboxy-5-pyrazolones, 1-(4'-amino-3- sulphophenyl)-3-methyland 3-carboxy-5-pyrazolones, 1-( 2 methyl--sulpho-3-aminophenyl)-3-methyland 3-carboxy- S-pyrazolones, and l-(2'chloro-3'-amino-5-sulphophenyl)-3- methyland 3-carboxy-5-pyrazolones.

The above process can conveniently be carried out in aqueous medium, the condensations being carried out, in general, at 0 10C. for replacement of the first chlorine atom of the cyanuric chloride and at 3050C. for replacement of the second chlorine atom. In general, the condensations should be carried out at from pH3 to pH 6.5, depending on the amino compound concerned; it is advisable to use the more acid end of this range for aminonaphthols having a tendency to condense on the OH group as well as the amino group. The couplings should be carried out at as low a temperature and as low a pH as will operate efficiently to avoid hydrolysis of chlorine from the triazine nucleus.

The following Example and table illustrate the above process.

EXAMPLE 41 A solution of 26.1 parts of the sodium salt of 2-amino-5- naphthol-7-sulphonic acid in 200 parts of water is added to a suspension of 18.4 parts of cyanuric chloride in 200 parts of acetone 150 parts of ice and 150 parts of water and the mixture is stirred for 1 hour at 05C. A 10 percent solution of sodium carbonate is added to bring the pH of the mixture to 6.7 7 and stirring is continued for a further lVz'hours, the pH being maintained at 6.5 7 by further additions of sodium carbonate solution when necessary. A neutral solution of 21.3 parts of the sodium salt of l:4-phenylenediamine-Z-sulphonic acid in 200 parts of water is added and the mixture is heated at 35 40C. for 2 hour of pH being maintained at 7 by addition of a 10 percent aqueous solution of sodium carbonate, 80

A solution of 29.1 parts of the disodium salt of the compound so obtained in 300 parts of water is added to a suspension of 4.6 parts of cyanuric chloride in 50 parts of acetone, 40 parts of ice and 40 parts of water and the mixture is stirred for one-half hour at O5C. A 10 percent aqueous solution of sodium carbonate is added to bring the pH to 7 and the mixture is stirred for a further 2 hours the pH being maintained at 7 by further addition of sodium carbonate when necessary. The mixture is then heated at 4045C. for 4 hours the pH being maintained at 7 by additions of sodium carbonate solution. The mixture is cooled to O-50C and the diazonium salt from 11 parts of 4methoxyaniline-2-sulphonic acid is added together with sufficient sodium carbonate to hold the pH of the mixture at 7 and the latter is stirred for 4 hours. One hundred twenty parts of sodium chloride are added and the precipitate is filtered off and dried.

The dyestuff composition so obtained contains 1.45 atoms of hydrolysable chlorine for each azo group present. When applied to cellulose textile materials in conjunction with a treatment with an acid binding agent the dye yields scarlet shades having good fastness to light and to wet treatments.

The following table describes further Examples of the invention, obtained in similar manner to Example 41 by condensing cyanuric chloride with 1 mole of the diamine named in column 2 and one mole of the coupling component named in column 3, thereafter condensing cyanuric chloride with 2 moles of the resultant amino compound and finally coupling the product with 2 moles of the diazonium compound of the amine named in column 4. The shade of material colored by the dyestuff is stated in column 5. I

The invention also provides a process for manufacture of the new dyestuffs in which the dyestufi' radical D NHR takes the form:

PN=NQNR (13) where P- is the radical of a diazo component and QNR, is the radical of a coupling component which comprises condensing cyanuric chloride, in either order, with one mole of the coupling component and one mole ofa diamine offormula it K R R4 R5 0 (1 or with 1 mole of this compound and with 1 mole of a compound of formula:

above. As examples of diamines of formula (2) there may be mentioned:

l:4-phenylenediamine-2-sulphonic acid, 1:3-phenarts of sodium chloride are added and the precipitate is filf f p l i -me hyl-lz4phenlenediamine--sul homc acid, 2-meth l-1:5- hentered off. y p y p Diamino Coupling compoenent Diazo component Shade 42, 1,4-pli0nylene diaminc-2su1pli0nic acid... Z-megliylamino-fi-naphthol-T-sulplionic 2-11apl1thylantine-l,fi-disulphonic aeid. Reddish 101 orange. 1,3-plmnylune dianiiilu-4-St1l9ll0lii0 acid... .do .do D0. 1 do 4-met110xyaniline-Z-sulphonic acid Scarlet.

amino-B-naphtliol-3,6-disulphonic acid 2-naphthyl amine-sulphonic acid Bluish red.

(1 l Aniline-Z-sulphonic acid Red.

naphtliylamincAfl-disulphonic acid. Bluisli red. --naphtl1ylamin0-1,5-disulphonic acid D0. Aniline Red.

ylenediamine-4-sulphonic acid,2:6-diamin0toluene-4- amino compound (obtained as described in paragraph 1) in sulphonic acid, 2-methyl-l:5-phenylenediamino-3-sulphonic 200 parts of water is added and the mixture is heated at acid, 4:4'-diamino stilbene-2:2-disulphonic acid, 4,4'- 45-50C for 3 hours the pH being maintained at 7 by the addiaminodiphenyl-3-sulphonic acid, 2:6-diamino-naphthalenedition of a 10 percent aqueous solution of sodium carbonate. 4:8-disulphonic acid and l:4-diaminonaphthalene-2-su1phonic 5 Fifty parts of sodium chloride and 50 parts of potassium acid. chloride are added and the precipitate is filtered off.

As examples of pling compo e ts OffOrmIlla Q1NHR The dyestuff composition so obtained contains 1.45 reacthere may be mentioned aminonaphthol sulphonic acids and tive chlorine atoms for each azo group present. When applied aminopyrazolones e.g. l-anlinO-8-n phth0land 4,6- to cellulose textile materials in conjunction with a treatment disulphonic acids, 2-amino-5-naphthol-7-sulphonic acid, 2- 10 with an acid-binding agent the dyestuff yields bluish red amino-S-naphthol- 1 ,7-disulphonic acid, 2-amino-8-naphtholshades having good fastness to light and to wet treatments. 6-sulphonic acid, 2-amino-8-naphthol-3,fi-disulphonic acid, 2-

' (4amino anilino)-8-naphthol-3',6-disulphonic acid and the EXAMPLE 51 y derivatives of these p y To a solution of 51.1 parts of the disodium salt of 1-(N-2':4' and y- -Py P y dichlorotriazin-6ylamino)-8-naphthol-3 :6-disulphonic acid in and Y" Py 1'(3"amino'4l'sulpholilhenyl) 500 parts of water prepared as described in Example 51, there and 'PY is added a neutral solution of 21.5 parts of the sodium salt of sulphophenyl) '3'methyi'and3ca-Tboxy'spymzolonesi 1:4-phenylene diamine-Z-sulphonic acid in 300 parts of water methyls"SUIPhO'3I'amiHOPheHYD f and and the mixture is heated at 3540C for two hours, the pH PY and l'(zl'chlom'3l'ammo'sl'sulphophenyn' being maintained at 3.6-4 by the careful addition of sodium 3'methyl' and '3carboxys'Pyrazolonescarbonate. The solution is cooled to O-5C and there is added The above process can conveniently be carried out in aqueous medium, the condensations being carried out, in general, at 0-10C for replacement of the first chlorine atom of the cyanuric chloride and at -50C for replacement of the o 5o Ninety Pans ofsodium chloride and 90 pans of potas second chlorine atom. In general, the condensations should be sium chloride are added and the precipitate is filtered off. Carried out at from PH 3 to P1465 depending on the fimino A solution of 15.8 parts of the tetrasodium salt of the comcompound concerned; it is advisable to use the more acid end pound so obtained in 20 parts of water is added to a Suspen of this range for amino'naphthols having a tendency of 30 sion of 1.84 parts of cyanuric chloride in 10 parts of acetone, dense on the OH group as as the amino group The 20 parts of ice and 20 parts of water and the mixture is stirred couplings should be carried out at as low a temperature and as at 0c 5oc for 2 hours The pH of the mixture is raised to 65 10W 3 P as will Operate efficiemly to avoid hydrolyseis of and stirring is continued for a further 2 hours. The mixture is a suspension of the diazonium salt from 17.3 parts of aniline- 2-sulphonic acid together with sufficient sodium carbonate to raise the pH to 6.5 and the mixture is stirred for 2 hours at Chlonne the mama nucleusthen heated at -50c for 3 hours the pH of the mixture The following Examples and tables illustrate this process. being maintained at 7 by the addition of a 10 percent aqueous EXAMPLE solution of sodium carbonate. Forty parts of sodium chloride are added and the precipitate is filtered off and dried.

A solution of 36.3 parts of the disodi m Sal f 1 in The dyestuff composition so obtained contains 1.4 atoms of naphthol-326-disulphonic acid in parts Of water iS added hydrolysable chlorine for each azo group present whgn 3pwith stirring to a suspension of 18.4 parts f y n ri Chloride plied to cellulose textile materials in conjunction with a treatin 200 parts of acetone, parts of ice and 100 parts of water m i h an id-bi di agent, h d i ld d h d and the mixture is stirred at 0-5C for 1 hour when no h i od f me to li ht d t et treatments, diazotisable amine is present in the reaction mixture. A The following tabl d crib furth r exa les, obtain d in suspension of he diazonium salt from 303 Parts Of 45 similar manner to Example 50 or 51 by condensing cyanuric naphthylamine-l:S-disulphonic acid in 450 parts of water is hl id ith one l of th dia i of ol 2 a d on added together with sodium carbonate to bring the pH up to 6 l of th ou lin on nt of olu n 3, o lin ith over one-half hour. The coupling mixture is then stirred for a h di o i alt f th a in of olumn 4 and ond nsing further 1 h r w a neutral Solution of Parts Of the two moles of the resultant compound with cyanuric chloride. sodium salt of l:4-phenylenediamine-2-sulphonic acid in 300 5 Th hade of material colored by the dyestuff is stated in parts of water is added. The mixture is then stirred at 4045 ol 5,

Ex. Diarnine Coupling component Diazo component Shade 52 do 2-amino 5-1iaphtho1-7-sulphonic acid 4-methoXyaniline-Z-sdlphonic acid Scarlet.

53 1,3-pl1enylenc diamlne-Q-sulphonic acid. 2-megiylamino-5-nsphthol-7-sulphonic do Do,

54 (lo 51in 2-naphthylarnine-L5-disu1phonic acid. Reddishorange.

r aafifiaa aphtho Eiihibhhi'di'dffii' rigiiihilihiih i-hiiihehieei Blui li -red. 2-naphthy1amine-4,S-disulphonica Do. 58 ..do ..do Aniline R d,

C for 3 hours the pH being maintained at 6-6.5 by the addition of a 10 percent aqueous solution of sodium carbonate. EXAMPLE 59 parts of sodium chloride and 120 parts of potassium 5 chloride are added and the precipitate is filtered off. l-amino-8-naphthol-3,6-disulphonic acid is condensed with A solution of 10.4 parts of the enta sodium salt of the cyanuric chloride, the product coupled with diazotised 2- amino compound so obtained in 200 parts of water is added naphthylamine-l ,S-disulphonic acid and then condensed with with stirring to a suspension of 1.84 parts of cyanuric chloride 1,4-phenylene diamine-Z-sulphonic acid as described in Exin 10 parts of acetone, 20 parts of ice and 20 parts of water 70 ample 50, and 10.4 parts of the resultant product are conand the mixture is stirred at 05C for 2 hours. The pH of the densed with L p r Of cyanuric Chloride as described mixture is then raised to 6.5-7 over one-half hour by the thereingradual addition of 3 10 percent aqueous solution of odium T0 the resultant solution there is added a solution Of 9.4 carbonate and the mixture is stirred for a further 1% hours. A pa ts o the tetra sodium salt of the condensation product of further solution of 10.4 parts of the enta sodium salt of the 5 cyanuric chloride with one mole of 1,4-phenylene diamine;2:

sulphonic acid and 1 mole of l-amino-8-hydroxy-2 ',7- azonaphthalene,-l ',3,6-trisulphonic acid in 200 parts of water and the mixture is thereafter condensed in a similar manner to the final stage of Example 50.

The resulting dyestuff gives bluish red shades.

EXAMPLE 60 A solution of 26.1 parts of the sodium salt of 2-amino-5- naphthol-7-sulphonic acid in 200 parts of water is added to a suspension of 18.4 parts of cyanuric chloride in 200 parts of acetone, 150 parts of ice and 150 parts of water and the mixture is stirred at 5C. for 1 hour. Dilute sodium carbonate solution is then added to bring the pH to 6.5 and stirring is continued for 90 minutes, keeping the pH at 6.57 by further additions of sodium carbonate solution. A neutral solution of 21.3 parts of the sodium salt of 1,3-phenylene diamine-4- sulphonic acid in 200 parts of water is added and the mixture is heated at 3540C. for 2 hours keeping the pH at 7 by further additions of sodium carbonate solution. The mixture is cooled to 0 5C. and a suspension of the diazonium salt from 15.8 parts of orthanilic acid in 200 parts of water is added. The pH is brought to 7 by addition of dilute caustic soda and the mixture is stirred for 4 hours. Salt is then added to precipitate the product, which is filtered off and dried.

A solution of 7.68 parts of the trisodium salt of the resultant product in 200 parts of water cooled to 05C is added to a suspension of 1.84 parts of cyanuric chloride in 10 parts of acetone, parts of ice and 20 parts of water and the mixture is stirred at O-5C. for 2 hours. The pH is then raised to 6.4-7 over minutes by adding 10 percent sodium carbonate solutions and the mixture is stirred for a further 30 minutes.

To the resulting solutions there is added a solution of 9.34 parts of the tetra sodium salt of the condensation product of cyanuric chloride with one mole of 1,4-phenylene diamine-2- sulphonic acid and 2-methylamino-5 -hydroxy-2 ,6- azonaphthalene-1,5,7-trisulphonic acid in 200 parts of water and the mixture is stirred at 5540C. and pH 6.5-7 for 4 hours.

The dyestuff obtained by addition of salt, filtration and drying yields orange shades.

EXAMPLE 61 Proceeding in a similar manner in Example 59, l-amino-8- naphthol-3,6-disulphonic acid is condensed with cyanuric chloride and the product is coupled with diazotised orthanilic acid and then condensed with 1,4-phenylene diamino-Z- sulphonic acid.

1.84 parts of cyanuric chloride are condensed successively with 8.9 parts of the resultant product and 7.98 parts of the condensation product of cyanuric chloride with 1 mole of 1,3- phenylene diamine-4-sulphonic acid and 1 mole of 2-amino-6- (4-methoxyphenylazo)-5-naphthol-2, 7-disulphonic acid. The resulting dyestufi gives red shades.

The invention also provides a process for manufacture of the dyestufis in which D,- represents the radical of a copper complex monoazo compound which comprises subjecting a dyestuff of the formula:

in which A,, A R R and T have the meanings stated in connection with formula (1), D represent the radical of a monoazo compound having a o,o-dihydroxyazo or o-hydroxy-o-carboxyazo grouping, and D, has the meaning stated for D or for D of formula 1, to the action of copper-yielding agent, especially copper sulphate.

This process may be carried out by stirring a mixture of the dyestuff and the metal-yielding agent in an aqueous medium at elevated temperatures e.g. from 30 to 90C., maintaining the pH at from 5 to 7 to lessen the possibility of hydrolysis of the chlorine atoms on the triazine nuclei.

The process is illustrated by the following Example:

EXAMPLE 62 One molecular proportion of cyanuric chloride is condensed successively with one molecular proportion of 1-(3 aminophenyl)-3-methyl-4(2'carboxy-4sulphophenylazo)-5 pyrazolone, and one molecular proportion of 1:4phenylene diamine-2sulphonic acid and the 2 molecular proportions of the compound so obtained are condensed with one molecular proportion of cyanuric chloride by the general method described for Example 1.

16.8 Parts of the hexasodium salt of the compound so obtained are dissolved in 200 parts of water and the pH of the solution is brought to 6.8 by the adding of acetic acid. 24 Parts of a 2N aqueous copper sulphate solution are added and the mixture is heated at 60C., for 20 minutes. Fourty parts of sodium chloride are added and the precipitate is filtered off and dried.

The dyestuff composition so obtained contains 1.5 atoms of hydrolysable chlorine for each azo group present. When applied to cellulose textile materials in conjunction with a treatment with an acid-binding agent, the dye yields dull yellow shades having good fastness to light and to washing.

The invention also provides a process for manufacture of the new dyestuff in which D represents the radical of a copper complex of a o, odihydroxy monoazo compound of the azonaphthalene or phenylazonaphthalene series, which comprises subjecting a dyestuff of formula (1) in which A,, A R,R and T have the meanings stated, and D and D each represent a monoazo compound of the 2-phenylazo-1- naphthol or 2-naphthylazo-l-naphthol series to the action of a copper salt in the presence of an oxidizing agent.

This process may conveniently be carried out in aqueous medium at a pH of about 4 to 5 (e.g. in the presence of an acetic acid/sodium acetate buffer) at a temperature within the range of 10 to 70C. Suitable oxidizing agents include, for example, alkali metal peroxides, percarbonates, perborates, organic peracids, acylperoxides or air in the presence of oxygentransferring catalysts e.g. anthraquinone-2-sulphonic acid or deca-hydronaphthalene. The preferred oxidizing agent is hydrogen peroxide.

Preferably the radical D of the dyestuffs used in this process is a 1-hydroxy-2,2'-azonaphthalene radical having two sulphonic acid groups on each naphthalene nucleus, those on the hydroxyl-free nucleus preferably being attached to the nucleus in the 4 to 8 positions e.g. a 5, 7-disulphoor above all a 4' 8 disulpho-naphth-2'-yl radical.

The following example is illustrative of this process:

EXAMPLE 63 To a solution of 19.8 parts of the dyestuff of Example 14, in parts of water at pH 3.574.0 there are added 24 parts of 2N aqueous copper sulphate solution followed by sufficient sodium acetate to raise the pH to 4.5. The temperature of the mixture is raised to 30C with stirring and there are added 60 parts of 20 vols. hydrogen peroxide. The mixture is stirred 1 hr. at 30C. when the blue copper complex is formed. The pH of the mixture is then raised to 7.0 by addition of sodium carbonate and the mixture is screened. The filtrates we treated with 40 parts of sodium chloride, filtered and dried.

The dyestuff, so obtained, contains 1.4 atoms of hydrolysable chlorine for each azo group present. When applied to cellulose textile materials in conjunction with a treatment with an acid-binding agent the dye yields reddish-blue shades having excellent fastness to washing and to light.

The new dyestuffs can be isolated by the usual techniques adapted for isolation of water-soluble reactive dyestuffs, for

example, by salting out or spray drying the reaction mixture in which the dyestuff has been formed. if desired, stabilizers, for example alkali metal hydrogen phosphates, may be added.

The new water-soluble dyestuffs are valuable for coloring cellulose textile material, for example, textile materials comprising natural or regenerated cotton. For coloring such textile materials, the new dyestuffs are preferably applied, either by a dyeing or printing process, to the cellulose textile materials in conjunction with a treatment with an acid-binding agent, for example sodium hydroxide, sodium carbonate or sodium bicarbonate which may be applied to the cellulose textile material before, during or after the application of the D represents a member selected from the group consisting ofA,N NE E N=N--A and Cu dyestuffs. Alternatively when the coloration process involves 5 the use of a heating step a substance can be used, for example, AzN- a sodium trichloroacetate, which is changed into an acid-bind- H ing agent during the heating step. When so applied to cellulose wherein textile materials the new dyestuffs react with the cellulose and A, is selected from the group consisting of phenyl, provide a wide variety of shades having good fastness to light sulphophenyl, methoxysulphophenyl, sulphonaphthyl, and to wet treatments especially to sever washing. They are disulphonaphthyl and trisulphonaphthyl, notable for the high proportion which reacts when applied 1 is selected from the g p consisting of -p y from saline dyebaths in the beck, or on the jig or winch 1,4-phenylene wherein the benzene nucleus is substituted w l i by a member selected from the group consisting of l. Adyestuff of the formula CH CH CONHand NH CONH, and monoor disulpho hydroxy naphthylene, A is sulphophenylene, it it; R R3 it; B N N N N N N N N N fl n (1 (1 A (t n A (1 G l) l n l n N sogn N N N N II00CO=N & J A represents a member selected from the group consisting of sulpho-l,2-oxyphenylene, sulpho-l, 2-oxyphenylene wherein the benzene nucleus is mono substituted with a member selected from the group consisting of C] and wherein R, R and R each independently are selected from SO H, and dior tri-sulpho-l ,2-oxynaphthalene, and the group consisting ofhydmgen and 3 E is selected from the group consisting of monoor di- A is selected from the group consisting of sulphophenylene,

carboxyphenylene and sulphodiphenylene, and

sulphohydroxynaphth ylene. 2. The dyestutT of claim 1 having the formula: 

2. The dyestuff of claim 1 having the formula:
 3. The dyestuff of claim 1 having the formula
 4. A dyestuff as claimed in claim 1 having the formula:
 5. A dyestuff as claimed in claim 1 having the formula:
 6. A dyestuff as claimed in claim 1 having the formula: 